Thermodynamic Investigation of Dimethyl Sulfoxide Binary Mixtures at 293.15 and 313.15 K

Palaiologou, Maria M.; Arianas, George K.; Tsierkezos, Nikos G.

doi:10.1007/s10953-006-9082-5

Cited by 55 publications

(23 citation statements)

References 17 publications

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“…The refractive indices have been measured using an Anton Paar GmbH Abbe automatic refract meter with an accuracy of ±5 9 10 -6 units, the temperature of the samples being controlled within ±10 -2 K. The experimental results of calibration for Anton Paar analyzer and refract meter have been checked by comparing their densities, speeds of sound, and refractive indices for water with values available in literature ( Table 1). The experimental data of thermophysical properties of pure water were in good agreement with those from the literature [27][28][29][30][31][32][33][34][35][36][37]. Uncertainties associated with the experimental values of the thermophysical properties are presented in Tables 1 and 2.…”

Section: Apparatus and Measurements Proceduressupporting

confidence: 82%

Thermophysical investigations of exfoliated graphite nanoplatelets and active carbon in binary aqueous environments at different temperatures

2014

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Thermophysical investigations in binary liquid mixtures are important for many technological and environmental applications of exfoliated graphite nanostructures. The densities, speeds of sound, and refractive indices for the binary liquid mixture environments of water ? exfoliated graphite nanoplatelets, and water ? activated carbon have been measured versus composition, at different temperatures, at atmospheric pressure. The thermophysical properties such as the acoustic impedance, isentropic compressibility, specific refraction, space-filling factor, and relaxation strength have been evaluated over the composition range up to 100 kg m -3 , based on the experimental data. The absolute average percentage deviations of the calculated thermophysical properties in both systems were computed. The obtained results are discussed and interpreted in terms of molecular interactions and structural changes of these carbon-based nanomaterials.

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Section: Apparatus and Measurements Proceduressupporting

confidence: 82%

Thermophysical investigations of exfoliated graphite nanoplatelets and active carbon in binary aqueous environments at different temperatures

2014

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“…In fact, there is a convergence in the literature that in the DMSO mole percentage range of 30-40 % the water-DMSO interactions due to hydrogen bonds are at maximum. 18 Indeed, DMSO:water complexes of the stoichiometry of 2:1 at high DMSO mole fraction, 24,26,30,32 as well as of 1:2, 6,8,24,[26][27][28] 2:3, 27 and 1:3 33 at low DMSO content were proposed in the literature, although the existence of the latter has also been questioned. 27 However, such complexes were rather scarcely observed directly, e.g., through a detailed multiparticle spatial distribution analysis, 27 instead, their existence was merely hypothesized in explaining anomalous dynamical and thermodynamic properties of the mixture and other experimental data, or concluded on the basis of indirect evidences, such as radial distribution functions.…”

Section: Introductionmentioning

confidence: 99%

“…The study of the structure of the DMSO-water mixture is highly relevant to a broad range of topics since this mixture is widely used in chemistry as a solvent in reaction media and as a cryoprotective agent in biology. The main feature of the DMSOwater mixture is that close to the DMSO mole percentage of 30-40% many physico-chemical properties, such as viscosity, 1,2 rotational correlation time of water, 3,4 translational diffusion, 5,6 static permittivity, 7 and thermophysical properties, [8][9][10][11] have an extrema. Many experimental [12][13][14][15][16][17][18][19][20][21][22] and theoretical studies [23][24][25][26][27][28][29][30][31] have been carried out on this system with the main objective of explaining this non-linear behaviour of the macroscopic properties of this mixture in terms of the intermolecular interactions (water-water, water-DMSO and DMSO-DMSO).…”

Section: Introductionmentioning

confidence: 99%

The local environment of the molecules in water–DMSO mixtures, as seen from computer simulations and Voronoi polyhedra analysis

Idriss

Marekha

Киселев

et al. 2015

Phys. Chem. Chem. Phys.

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Running title: Voronoi analysis of water-DMSO mixtures * Electronic mail: nacer.idrissi@univ-lille1.fr (A.I), pali@chem.elte.hu (P. J.) 2 Graphical and textual abstract for the contents page:The local structure of DMSO-water mixtures is studied by computer simulation and Voronoi analysis 3 AbstractMolecular dynamics simulations of water- DMSO mixtures, containing 10,20,30,40,50, 60, 70, 80, and 90 mol% DMSO, respectively, have been performed on the isothermalisobaric (N,p,T) ensemble at T = 298 K and at the pressure equal to the experimental vapor pressure at each mixture composition. In addition, simulations of the two neat systems have also been performed for reference. The potential models used in the simulations are known to excellently reproduce the mixing properties of these compounds. The simulation results have been analyzed in detail by means of the Voronoi polyhedra (VP) of the molecules.Distributions of the VP volume and asphericity parameter as well as that of the radius of the spherical intermolecular voids have been calculated. Detailed analyses of these distributions have revealed that both molecules prefer to be in an environment consisting of both types of molecules, but the affinity of DMSO for mixing with water is clearly stronger than that of water for mixing with DMSO. As a consequence, the dilution of the two neat liquids by the other component has been found to follow different mechanisms: when DMSO is added to neat water small domains of neat-like water persist up to the equimolar composition, whereas no such domains are found when neat DMSO is diluted by water. The observed behavior is also in line with the fact that the main thermodynamic driving force behind the full miscibility of water and DMSO is the energy change accompanying their mixing, and that the entropy change accompanying this mixing is negative in systems of low, and positive in systems of high DMSO mole fractions. Finally, we have found a direct evidence for the existence of strong hydrogen bonded complexes formed by one DMSO and two water molecules, but it has also been shown that these complexes are in equilibrium with single (monomeric) water and DMSO molecules in the mixed systems.4

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“…The negative or positive deviations from the ideal value depend on the type and the extent of the interactions between the unlike molecules, as well as on the composition and the temperature. The variation of the isentropic compressibility is analogous of that of the excess molar volume, whereas the change of the deviation in speed of sound tends to become the inverse [1]. Physical and transport properties of liquid mixtures also affect most separation procedures, such as liquid-liquid extraction, gas absorption, and distillation [2].…”

Section: Introductionmentioning

confidence: 99%

“…Physical and transport properties of liquid mixtures also affect most separation procedures, such as liquid-liquid extraction, gas absorption, and distillation [2]. The mixture DMSO--xylene has been earlier reported twice in literature at different temperatures [1,3].…”

Section: Introductionmentioning

confidence: 99%

Thermophysical Properties of Binary Mixtures of Dimethylsulfoxide with 1-Phenylethanone and 1,4-Dimethylbenzene at Various Temperatures

Gill

Rattan

2014

Journal of Thermodynamics

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This research article reports the experimental results of the density, viscosity, refractive index, and speed of sound analysis of binary mixtures of dimethylsulfoxide (DMSO) + 1-phenylethanone (acetophenone) and + 1,4-dimethylbenzene (para-xylene) over the whole composition range at 313.15, 318.15, 323.15, and 328.15 K and at atmospheric pressure. The excess molar volumes ( ), viscosity deviations (Δ ), excess Gibbs energy of activation ( ), deviations in isentropic compressibility ( ), deviations in speed of sound ( ), and deviations in the molar refraction (Δ ) were calculated from the experimental data. The computed quantities were fitted to the Redlich-Kister equation to derive the coefficients and estimate the standard error values. The viscosities have also been correlated with two, and three-parameter models, that is, Heric correlation, McAllister model, and Grunberg-Nissan correlation, respectively.

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Thermodynamic Investigation of Dimethyl Sulfoxide Binary Mixtures at 293.15 and 313.15 K

Cited by 55 publications

References 17 publications

Thermophysical investigations of exfoliated graphite nanoplatelets and active carbon in binary aqueous environments at different temperatures

Thermophysical investigations of exfoliated graphite nanoplatelets and active carbon in binary aqueous environments at different temperatures

The local environment of the molecules in water–DMSO mixtures, as seen from computer simulations and Voronoi polyhedra analysis

Thermophysical Properties of Binary Mixtures of Dimethylsulfoxide with 1-Phenylethanone and 1,4-Dimethylbenzene at Various Temperatures

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